<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
// 1、使用out隐式对象输出内容，jspWriter
out.println("first line <br>");
// 2、使用printWriter输出
response.getWriter().print("second line <br>");
%>
</body>
</html>